Importantly, more than a half-centurys worth of research involving high-dose NAD+ precursor supplementationalong with clinical studies of over 2,000 participantshas found no evidence linking these compounds to an increased risk of cancer in humans. In fact, some studies suggest the opposite: supplementation with NAD+ precursors may be associated with a lower risk of certain cancers. For example, a large Australian randomized controlled trial found that nicotinamide supplementation significantly reduced the incidence of non-melanoma skin cancer. Additionally, data from the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2014 revealed an inverse association between niacin intake and mortality among cancer patients. Clinical studies of NR also further support NAD+ precursor safety
Chen, L., Bi, G., Yao, X., Tan, C., Su, J., Ng, N
Neurological symptoms often develop gradually and may include: Paraesthesia : tingling or 'pins and needles' sensations, typically starting in the feet and hands Numbness : reduced sensation in the extremities, which may affect balance and coordination Burning pain : particularly in the feet, often worse at night Weakness : muscle weakness and difficulty walking Balance problems : unsteady gait and increased fall risk due to proprioceptive impairment Cognitive changes : memory problems, confusion, difficulty concentrating, and mood disturbances Haematological signs may accompany neurological symptoms and include fatigue, weakness, pallor, and shortness of breath due to megaloblastic anaemia
A more clinically honest way to think about combination therapy If youre already on GLP-1/GIP therapy and plateaued, the first questions are usually: Are you undereating protein and losing lean mass
Otherwise, the form of B12 should not be a primary factor in choosing a tirzepatide preparation
